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Table 1 Search strategy for MEDLINE (PubMed)

From: Screening for small for gestational age using third-trimester ultrasound markers: protocol for a systematic review and meta-analysis of screening test accuracy

Step Concept Search strategy
#1 Population = pregnant women “Pregnancy”[Mesh: NoExp] OR “Pregnancy Outcome”[Mesh: NoExp] OR “Pregnancy, High-Risk”[Mesh] OR “Pregnancy Trimesters”[Mesh] OR pregnant[TIAB] OR pregnanc*[TIAB] OR gestation*[TIAB] OR fetus[Mesh: NoExp] OR fetal[TIAB] OR foetal[TIAB] OR fetus[TIAB] OR foetus[TIAB] OR foetuses[TIAB] OR fetuses[TIAB]
#2 Index test = ultrasound “Ultrasonography”[Mesh: NoExp] OR “Ultrasonography, Prenatal”[Mesh: NoExp] OR (“Ultrasonography, Doppler”[Mesh] Not “Echocardiography, Doppler”[Mesh]) OR ultrasonograph*[TIAB] OR ultrasound[TIAB] OR “ultra sound”[TIAB] OR sonograph*[TIAB] OR scan[TIAB] OR Doppler[TIAB] OR echograph*[TIAB]
#3 Reference test = small for gestational age measured by birth weight “Infant, low birth weight”[Mesh] OR “fetal weight”[Mesh] OR “Birth weight”[Mesh: NoExp] OR “Fetal growth retardation”[Mesh] OR “small for gestational age”[TIAB] OR “SGA”[TIAB] OR “birth weight”[TIAB] OR “birth-weight”[TIAB] OR “birthweight”[TIAB] OR “IUGR”[TIAB] OR “growth restriction”[TIAB] OR “growth retardation”[TIAB] OR “fetal weight”[TIAB] OR “foetal weight”[TIAB] OR “fetus weight”[TIAB] OR “foetus weight”[TIAB] OR “neonatal weight”[TIAB] OR “newborn weight”[TIAB] OR “infant weight”[TIAB] OR “fetal size”[TIAB] OR “foetal size”[TIAB] OR “fetus size”[TIAB] OR “neonatal size”[TIAB] OR “newborn size”[TIAB] OR “infant size”[TIAB] OR “fetal growth”[TIAB] OR “foetal growth”[TIAB] OR “fetus growth”[TIAB] OR “foetus growth”[TIAB] OR “neonatal growth”[TIAB] OR “newborn growth”[TIAB] OR “infant growth”[TIAB]
#4 Outcome = predictive value “Sensitivity and Specificity”[MeSH] OR “Predictive Value of Tests”[MeSH] OR Sensitivit*[TIAB] OR specificity[TIAB] OR “predictive value*”[TIAB] OR “predictive model*”[TIAB] OR “false-positive rate”[TIAB] OR “detection rate”[TIAB] OR “ROC curve”[TIAB] OR “receiver operating characteristic”[TIAB] OR “AUC”[TIAB] OR “area under the curve”[TIAB] OR “Prenatal Diagnosis”[Mesh: NoExp] OR “Neonatal Screening”[Mesh] OR “Diagnostic imaging”[Subheading] OR screening[TIAB]
#5 Human filter Animals[MeSH] NOT Humans[MeSH]
#6 Combination of concepts #1 AND #2 AND #3 AND #4 NOT #5